javascript - Break statement won't break the loop

I want to set the first least common multiple of 2 number(n1 and n2), but my break statement won't work. I don't want to use a return(which it works). Is there a way to work around this? Thanks.

var firstDayTogether,n1,n2;

for(var i=1;i<12345;i++){
    for(var j=1;j<12345;j++){
        if((s1*i)==(s2*j)){
            firstDayTogether=(s1*i);
            break;
        }

    }
}

Answer

You're only breaking out of the inner loop. You can use a label to specify which loop to end.

outerloop: for( var i=1; i<12345; i++) {
    for( var j=1; j<12345; j++) {
        if((s1*i)==(s2*j)) {
            firstDayTogether = s1*i;

            break outerloop; // <== !!
        }
    }
}